List of Docker Commands with Examples: Cheat Sheet

Docker is a software that offers a set of platform-as-a-service products for developing and deploying applications by packaging software in containers. Containers are lightweight, portable, virtual environments that developers can share without risking inconsistencies in development. Due to these incredibly useful features, many organizations have switched from using virtual machines to Docker containers. Like any …

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Developer Tutorial | Hyperledger Composer

This tutorial will walk you through building a Hyperledger Composer blockchain solution from scratch. In the space of a few hours you will be able to go from an idea for a disruptive blockchain innovation, to executing transactions against a real Hyperledger Fabric blockchain network and generating/running a sample Angular 2 application that interacts with …

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An overview of Ethereum Swarm: A decentralised filestore

Swarm is one of the latest projects to be built on Ethereum and is perhaps the central piece of the entire decentralised ecosystem. According to its website, Swarm is a censorship-resistant, permissionless, decentralised storage and communication infrastructure. The main purpose of Swarm is to be a decentralised store for dApp code, user data, blockchain data, …

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How To Install Elasticsearch, Logstash, and Kibana (ELK Stack) on Ubuntu 14.04

In this tutorial, we will go over the installation of the Elasticsearch ELK Stack on Ubuntu 14.04—that is, Elasticsearch 2.2.x, Logstash 2.2.x, and Kibana 4.5.x. We will also show you how to configure it to gather and visualize the syslogs of your systems in a centralized location, using Filebeat 1.1.x. Logstash is an open source …

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A Complete Beginner’s Guide To Blockchain

You may have heard the term ‘blockchain’ and dismissed it as a fad, a buzzword, or even technical jargon. But I believe blockchain is a technological advance that will have wide-reaching implications that will not just transform the financial services but many other businesses and industries. A blockchain is a distributed database, meaning that the …

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Kubernetes vs. Docker Understand containers and orchestration

If you’ve kept up with the latest trends in software development, there are two terms you’ve undoubtedly encountered again and again: Docker and Kubernetes, which are essentially shorthand for containers and orchestration.Docker containers have helped streamline the process of moving applications through development and testing and into production, while both Docker and Kubernetes have helped to reinvent the way applications are…

Hyperledger Fabric Vs Ethereum: Head-To-Head Battle

The need for blockchain technology keeps rising, and many of the platforms are going mainstream. Among these, enterprises are more than ever eager to go for blockchain solutions, and they are willing to put a considerable amount of resources for that. Platforms like Hyperledger Fabric and Ethereum are already making headlines every day. That’s why …

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The Year in Ethereum

by Josh Stark, Evan Van Ness, and Daniel Zakrisson Ethereum began as a bold experiment. Can we build a universal platform for digital money and assets, un-censorable applications, and decentralized organizations? We started with a slightly smaller experiment: was it possible to launch a blockchain that could execute arbitrary programs? Over time, the Ethereum community …

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Production-Grade Container Orchestration

Kubernetes FeaturesService discovery and load balancingNo need to modify your application to use an unfamiliar service discovery mechanism. Kubernetes gives Pods their own IP addresses and a single DNS name for a set of Pods, and can load-balance across them.Service TopologyRouting of service traffic based upon cluster topology.EndpointSlicesScalable tracking of network endpoints in a Kubernetes…